Walkthrough:Kingdom Hearts II/The Land of Dragons
This is one of the first Disney worlds in the game. Upon landing, a cutscene will begin involving your old ally, Mushu, along with a young "man" named Ping. After this hummous cutscene, Ping will join the party.
You'll be givin a quick tutorial about switching party members (unless you have visited Beast's Castle first), though at this point, Ping cannot be swapped out. You'll also encounter a Moogle Shop. If you have any Synthesis items, use it to hand them in. Now, walk down the path and you'll reach a camp. Walk to the line of soldiers, and a cutscene will begin, which will introduce you to Yao, Ling, Chin Po and Captain Lei Shang. During the cutscene, a group of Heartless will attack the camp. You must fight them, but don't let the bar on the top left corner of the screne run out, otherwise it's game over. It will go down everytime Ping is attacked.